If this will be your "uber tandem" and the last one that you'll likely buy for the foreseeable future, strongly consider getting it built the way you'd like it to be, instead of cutting corners.
You did a great job of getting your feet wet with the Burley as your first tandem. Having made that reasonable investment and spent 3 years amortizing it, you have apparently decided that tandeming is something you and your spouse enjoy. Moreover, your choice of the daVinci and the upgrades you're already looking at suggest that you are now tandem enthusiasts instead of a simply a couple who own and ride a tandem (there is a difference).
So, here's the acid test: If you go with the mid-priced In-2-ition component package instead of the high-end Joint Venture component package, will you:
1. kick yourself for not opting to go with the higher grade components?
2. most likely upgrade to higher-end components within the first year of ownership?
3. be satisfied that you got the bike you want within your budget and simply wait to upgrade components as the other ones need it?
If you answer 1 or 2, I'd strongly consider making the investment up front. You'll be happier with your purchase and it will ultimately cost you less than if you make the upgrades on your own shortly after the point of sale and end up with all kinds of extra parts sitting around. I call the latter Harley Davidson Buyer's Syndrome or HD-BS... It's the most expensive way to buy something.
If you answered 3 then you're probably OK. Just be sure you're not a kidding yourself otherwise you'll fall victim to that HD-BS.
Last edited by TandemGeek; 09-11-07 at 03:28 PM.